Nozzle tool-free quick release assembly

Abstract

The utility model discloses a nozzle toolless quick-release assembly which comprises a nozzle base and a hot end assembly, the nozzle base is provided with a quick-release female plate, the hot end assembly is provided with a quick-release male plate, the quick-release female plate is matched with the quick-release male plate, the hot end assembly comprises a heat dissipation block, the heat dissipation block is provided with a pin buckle, the nozzle base is hinged to a quick-release rod, and the quick-release rod is pressed downwards and screwed into the pin buckle in a rotating mode. Through the design of the quick-release assembly, the nozzle base and the hot end assembly are in electrical butt joint through the quick-release male plate and the quick-release female plate, tool-free quick disassembly is conducted through the quick-release rod, only the heat dissipation block needs to be taken during assembly and disassembly, the heat dissipation block is the cold end in the nozzle, and the scalding risk is avoided. Therefore, the advantages of safety and tool-free quick disassembly are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of 3D printing, and in particular relates to a tool-free quick-disassembly component of a nozzle. Background Art

[0002] The FDM (fused deposition modeling) 3D printer heats the print head at high temperature to melt the printing material and deposit it onto the printing platform. When the melted printing material contacts the printing platform, it cools and quickly solidifies. The print head deposits the printing material layer by layer onto the printing platform along a set printing path, thereby constructing a model with a three-dimensional structure.

[0003] The current FDM printing technology is developing towards ease of use, while taking into account safety in order to adapt to real usage scenarios. Conventional FDM equipment nozzles have a variety of models, such as: 0.2mm, 0.4mm, 0.6mm, 0.8mm, etc., with multiple specifications to switch to adapt to different printing scenarios. In addition, if the nozzle is damaged or its service life expires, it is also necessary to replace the nozzle-related components. For the nozzle, which is a consumable part, it is often necessary to disassemble multiple parts such as screws and wiring harnesses, which is very cumbersome. In addition, the nozzle temperature often reaches around 200-300℃, and there is a risk of burns during maintenance and replacement. Utility Model Content

[0004] The purpose of the utility model is to provide a tool-free quick-release assembly for a nozzle, which can ensure the nozzle performance of existing FDM equipment by designing a quick-release mechanism, and can achieve tool-free disassembly while ensuring safety and without the risk of scalding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The tool-free quick-release assembly of the nozzle comprises a nozzle base and a hot end assembly. The nozzle base is provided with a quick-release mother plate, and the hot end assembly is provided with a quick-release male plate. The quick-release mother plate matches the quick-release male plate. The hot end assembly comprises a heat sink block, and the heat sink block is provided with a pin buckle. The nozzle base is hinged with a quick-release rod, and the quick-release rod is pressed down and rotated to screw into the pin buckle or rotated upward to leave the pin buckle.

[0007] Through the design of quick-release components, the nozzle base and hot end components are electrically connected / separated through the quick-release male plate and the quick-release mother plate, and then quickly disassembled without tools through the quick-release rod. When installing and disassembling, you only need to take the heat sink, which is the cold end of the nozzle, without the risk of scalding. Therefore, the advantages of safe and tool-free quick disassembly are achieved.

[0008] Furthermore, the heat sink block is provided with a mounting plate, and a quick-release male plate is fixed to the mounting plate.

[0009] The quick-release male plate is installed on the heat sink, which is the cold end to prevent the quick-release male plate from overheating.

[0010] Furthermore, the nozzle base is provided with a positioning hole, and the mounting plate is provided with a positioning block, and the positioning block matches the positioning hole.

[0011] Through positioning by the positioning block and the positioning hole, the quick-release male plate of the hot end assembly is plugged into the quick-release female plate of the nozzle base to connect the circuit.

[0012] Furthermore, the quick-release rod comprises a rotating shaft, a clamping portion and a handle portion, the rotating shaft is hinged to the nozzle base, and the clamping portion is clamped to the pin buckle.

[0013] Hold the handle and rotate the quick release rod downward around the rotation axis until the clamping part is engaged with the pin buckle, thereby fixing the position of the hot end assembly. Hold the handle and rotate the quick release rod upward to make the clamping part away from the pin buckle, thereby loosening the hot end assembly so that it can be removed.

[0014] Further, the hot end assembly includes a throat, a heating block and a nozzle, and the throat portion is located in the heat dissipation block.

[0015] The wire material enters the throat, the heating block and the nozzle in sequence. The heating block heats the wire material, and the heat dissipation block at the throat dissipates heat from the wire material to prevent the temperature of the wire material in the throat from being too high.

[0016] Furthermore, the throat pipe is provided with a throat pipe top shaft, and the throat pipe top shaft is located in the heat dissipation block and fixed by screws.

[0017] The throat is inserted into the heat sink, and the top axis of the throat is located in the heat sink. The screw is tightened to push the top axis of the throat forward, thereby fixing the throat and the heat sink.

[0018] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0019] Through the design of quick-release components, the nozzle base and hot end components are electrically connected / separated through the quick-release male plate and the quick-release mother plate, and then quickly disassembled without tools through the quick-release rod. When installing and disassembling, you only need to take the heat sink, which is the cold end of the nozzle, without the risk of scalding. Under the premise of ensuring nozzle performance, ensuring safety, and no risk of scalding, tool-free disassembly is carried out quickly, achieving the advantages of safe, tool-free and quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the tool-free quick-release assembly of the nozzle in an unassembled state.

[0022] Figure 2 It is a structural schematic diagram of the hot end component.

[0023] Figure 3 Schematic diagram of the hot end assembly after removing the heat sink.

[0024] Figure 4 This is a schematic diagram of the structure of the tool-free quick-release assembly of the nozzle when the quick-release rod is not fixed.

[0025] Figure 5 This is a schematic diagram of the structure of the tool-free quick-release assembly of the nozzle when the quick-release rod is fixed. DETAILED DESCRIPTION

[0026] like Figure 1 The tool-free quick-release assembly of the nozzle shown includes a nozzle base 1 and a hot end assembly 2. The nozzle base 1 is provided with a quick-release motherboard 3. The hot end assembly 2 includes a heat sink 4, a mounting plate 5 and a quick-release male plate 6. The heat sink 4 is fixed to the mounting plate 5. The mounting plate 5 is fixed with a quick-release male plate 6. The quick-release motherboard 3 matches the quick-release male plate 6. The nozzle base 1 is provided with a positioning hole 7. The mounting plate 5 is provided with a positioning block 8. The positioning block 8 matches the positioning hole 7. Through the positioning of the positioning block 8 and the positioning hole 7, the quick-release male plate 6 of the hot end assembly 2 is plugged into the quick-release motherboard 3 of the nozzle base 1 to connect the circuit.

[0027] like Figure 1 and Figure 4 , Figure 5 As shown, the nozzle base 1 is hinged with a quick release rod, which includes a rotating shaft 9, a clamping portion 10 and a handle portion 11. The rotating shaft 9 is hinged to the nozzle base 1, and the heat sink 4 is provided with a pin buckle 12, and the clamping portion 10 is clamped with the pin buckle 12. Holding the handle portion 11, the quick release rod is rotated downward around the rotating shaft 9 until the clamping portion 10 is clamped with the pin buckle 12, thereby fixing the position of the hot end assembly 2. Holding the handle portion 11, the quick release rod is rotated upward to make the clamping portion 10 away from the pin buckle 12, thereby loosening the hot end assembly 2 so that it can be taken out.

[0028] like Figure 3 As shown, the hot end assembly 2 also includes a throat 21, a heating block 22 and a nozzle 23, and the throat 21 is partially located in the heat sink 4. The wire material enters the throat 21, the heating block 22 and the nozzle 23 in sequence, the heating block 22 heats the wire material, and the heat sink 4 at the throat 21 dissipates heat from the wire material to prevent the wire material temperature in the throat 21 from being too high. The throat 21 is provided with a throat top shaft 24, and the throat top shaft 24 is located in the heat sink 4 and fixed by screws 25. The throat 21 is inserted into the heat sink 4, and the throat top shaft 24 is located in the heat sink 4. The screws 25 are tightened to push the throat top shaft 24 to move forward, and the throat 21 is fixed to the heat sink 4.

[0029] During installation, hold the heat sink 4 and align the positioning block 8 with the positioning hole 7, move the hot end assembly 2 into the nozzle base 1, dock the quick-release mother plate 3 with the quick-release male plate 6, hold the handle 11 of the quick-release rod and rotate it downward, and engage the clamping part 10 with the pin buckles 12 on both sides of the heat sink 4 to fix the position of the hot end assembly 2. During disassembly, hold the handle 11 and rotate it upward, move the clamping part 10 away from the pin buckle 12, hold the heat sink 4 and move the hot end assembly 2 out of the nozzle base 1.

[0030] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. Tool-free quick-release assembly of the nozzle, characterized by: It includes a nozzle base and a hot end assembly, the nozzle base is provided with a quick-release mother plate, the hot end assembly is provided with a quick-release male plate, the quick-release mother plate matches the quick-release male plate, the hot end assembly includes a heat sink, the heat sink is provided with a pin buckle, the nozzle base is hinged with a quick-release rod, the quick-release rod is pressed down and rotated to screw into the pin buckle or rotated upward to leave the pin buckle.

2. The tool-free quick-release assembly for the nozzle according to claim 1, characterized in that: The heat sink block is provided with a mounting plate, and the quick-release male plate is fixed to the mounting plate.

3. The tool-free quick-release assembly for the nozzle according to claim 2, characterized in that: The nozzle base is provided with a positioning hole, and the mounting plate is provided with a positioning block, and the positioning block matches the positioning hole.

4. The tool-free quick-release assembly for the nozzle according to claim 1, characterized in that: The quick-release lever comprises a rotating shaft, a clamping portion and a handle portion, the rotating shaft is hinged to the nozzle base, and the clamping portion is clamped to the pin buckle.

5. The tool-free quick-release assembly for a nozzle according to claim 1, characterized in that: The hot end assembly includes a throat, a heating block and a nozzle, wherein the throat portion is located in the heat dissipation block.

6. The tool-free quick-release assembly for the nozzle according to claim 5, characterized in that: The throat pipe is provided with a throat pipe top shaft, and the throat pipe top shaft is located in the heat dissipation block and fixed by screws.

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